/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.dubbo.springboot.demo.provider;

import org.apache.dubbo.common.utils.NetUtils;
import org.apache.dubbo.config.annotation.DubboService;
import org.apache.dubbo.rpc.RpcContext;
import org.apache.dubbo.springboot.demo.DemoService;

@DubboService(parameters = "region=${ENV}")
public class DemoServiceImpl implements DemoService {

    @Override
    public String sayHello(String name) {
        RpcContext context = RpcContext.getContext();

        String serverIP = NetUtils.getLocalAddress().getHostAddress();

        String result = " Hello " + name + "[ FROM " + serverIP + ":" + getEnvInfo() + "]";
        return result;
    }

    private static String getEnvInfo() {
        StringBuffer sb = new StringBuffer();
        String dubboEnvKeys = System.getenv("DUBBO_ENV_KEYS");
        if (dubboEnvKeys != null) {
            String[] keys = dubboEnvKeys.split(",");
            for (String key : keys) {
                String value = System.getenv(key.trim());
                System.out.println("getEnv: " + key + " = " + value);
                sb.append(key).append("=").append(value).append(";");
            }
        }
        return sb.toString();
    }
}
